关键词: 固体火箭发动机;火箭发动机壳体;铸造钛合金;设计

Abstract: The design method for the cast aft-dome and the technical difficulties met in the trial-production and their solutions are emphatically introduced in this paper. The stress distribution under the hydrostatic test and the performance data of the casting titanium alloy ZTC4 treated at thermal isostatic-pressing are also presented, which will be helpful as a referance to the design and the application for the similar products.

Key words: Solid rocket engine;Roeket engine case;Cast titanium alloy;Design